Finding the Fourth Proportional to 30,672.51, 42,329.57 and 17,247.99

Step by Step Solution

1. Step 1: Write the proportion equation
   30,672.51 : 42,329.57 = 17,247.99 : x
2. Step 2: Convert to fraction form
   30,672.51/42,329.57 = 17,247.99/x
3. Step 3: Cross multiply
   30,672.51x = 42,329.57 × 17,247.99
4. Step 4: Simplify right side
   30,672.51x = 730,099,913.82
5. Step 5: Solve for x
   x = 730,099,913.82/30,672.51
6. Step 6: Final answer
   x = 23,803.07